Improved machine for straightening metal bars, rails, tubes



Y UNITED STATES PATENT OFFICE.

BERNARD LAUTH, or BUCHANAN, PENNSYLVANIA..

IMPROVED MACHINE- FOR STRAlGHTENlNG METAL BARS, RAILS, 'l'UES. de.

Specification forming part of Letters Patent No. 4 I,306, dated J anuaryli), 1864.

To all whom it may concern.' y

Be it known that I, BERNARD LAUTH, of

Buchanan, in the county ot' Allegheny and Sta-te of Pennsylvania, have invented certain new and -usei'ul improvements in machinery .or apparatus for 'straightening metal bars,

rails, rods, tubes, plates',and other similar articles; and I do hereby declare Athat the following is a full, clean-and eXact description 4ofthe same, reference being had to the acv through the apparatus or machine.

My invention consists in the combination of two or more pairs of top rollers with two or more pairs ot" bottom rollers, the -centers of the top rollers being placed between the centers ot' the bottom rollers.

'To enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference to the drawings.

The top rollers are shown at a and the bot tom rollers at b, the centers of the top roilers (as shown by the red lines extending therefrom) being placed between the centers yof the-bottom rollers. The journals of allthe rollers work in suitable bearings'm the frame-work A. A bottom roller at each end o't the series may be turned by gearing in thedirection of the' passage of the bar, rail, plate, or other ar ticle, to carry it through, and at the front of the machine there may be gripping or nipping rollers to advance the article to be 'straighc ened, and at the rear of the machine another pair of similar rollers to deliver it.from the machine. l f

The rollers may be either grooved, hat, or of lany other form, according to the kind ot' article to be straightened, and the positions of their bearings may be regulated by screws or otherwise, either acted uponseparately or simultaneously. For straightening round,

square, or other-shaped bars, rails, or tubes,

the rollers are grooved or shaped'according tothe form of the article to be straightened,

The rollers, framework, and gearing may be made of any required strength, and the rollers are A placed -atany suitable distance apart, and any number ot rolls may be used in the tra-in.

Bypassing 'a rail, bar, or any other article through between such a series of rollers all the bends or sinuosities are rolled out and the s articles come out perfectly straightened.

Having thus fully described the'nature, object, and purpose of my invention, what I claim, in a machine for straightening bars,

rails rods, tubes, plates,and other articles of i metal, isy The employment of a double set of rollers, the centers of one set being placed between the centers of the other set-,`su bs`tantial1y in the manner and for the purpose herein set forth.

' BERNARD LAUTH.

- Witnesses:\` i v JonN C. SfrEvENsoN,

DANIEL BERG, A. B. SrEvENsoN.. 

